RockShox Electronic Seatpost Module One Color, Reverb AXS B1+ (2025+)

The RockShox Reverb AXS electronics module replaces the collar and electronics assembly on a wireless Reverb AXS dropper post, the component most likely to need service if the post stops actuating. Rather than replacing the entire post, this module swaps in fresh electronics at the collar, restoring wireless function without touching the post's mechanical internals.